Feed mixer



March 10, 1931. P. w, G, NlELsoN 'FEED MIXER Filed April 2, 1950 3 Sheets-Sheet 1 March 10, 1931. P w, G, NlELsON 1,795,792

gg? www? MarGh 10, 1931- Fv w, G. NlELsoN 1,795,792

FEED MIXER Filed April 2, 1950 3 Sheets-.Sheet 5- 45V presenting `the Patented Mar. 1o, 193i narran STATES rONTUs W. G. NIELsON, or GRRRNsBoRo, NoRTH CAROLTNA, AssIGNoRTO vivioNARort MACHINEAND MANUFACTURING COMPANY, TNC'ORPORATRD, A CORPORATION or y NORTH CAROLINA y REED MIXER Appiieation nieu Aprill a, 1930.-t sei-iai No. 441,073.

The invention relates to feed mixers and has as an object the provision of a inachineto efficiently and rapidly mix large quantities of 'feed withA a small' expenditure of power.

Y5" y1t is a further object of the inventionto provide a machine that will vvmix` feed and ensure that no lumps of material areleft therein. f Y It is a further Object of the invention to provide a machine that will cut large particles or lumps of material-while' mixing the same thoroughly with the remaining ingredients of the feed. l Itis a further object of the inventionto provide a machine that will mix feed and turn out an intimate mixture ofthe ingredients in finely divided conditi-on and 'removeiany particlesfof metal therefrom. Y

It isa further Object ofthe invention'to improve geiierallyth'e details of machines of this character. n

' Further objects of the'V invention will ap-V pear from the `following description when read in connectionwitli the accompanying drawings showing an illustrative embodi-k ment of the invention and wherein:

Fig. 1 is an end view;

Fig. 2 is a verticaly transverse section on line 2-2 of Fig. 3;

Fig. 6 is a vertical section on line 6-6 of Fig. 5

Fig?? is a detail enlargedside elevation of a portion of the screen; and

Y Fig. 8 is a detail side elevation of a mixing element showing its relation to a portion-of the screen shown in section. j y

As shown the device comprises jend members 10, 11, preferably formed'as castings and casting 10 are formed bearings 16,19 for shafts 18 and 20 respectively. A second bear#y ing 17 for'sliaft 18 is shown as formedin a plate 17 secured 'to the plate 11.

5o A second bearing for the shaft 2O is shown Fig.` 3 is a vertical longitudinal section on v Y is a detail side view of the magnetic' l attachment upon an enlarged scale; l

legs 12, 13, 14, 1 5. In the as formed upon a casting 21 which may be secured to the endmember 11 as'by bolts 22,

PATENT;oFi-*icEjjf E the casting 21 projecting outwardly so as to clear l'the "outlet opening 23 and f carrying bearing24 forthe shaft 2O. For lubrication of the shafts 18,y 20, grease or oil cups, 25,26

and 27 aresliown. y v A j To drive the' shaft 18there is shown a belt pulley 28 fixed upon the shaft 18adapted to be driven by a belt 29 preferably of Vtype driven' by pulley 30`upon the shaft of motor 31. lThe motor 31 is shown as mounted upon a base 32-{which' base hingedly engages .the longitudinal tie' rodf'33 ofthe frame of the device, asv indicated 'at 34, yand tliefree end of the base 32 i-s shown as ysupported upon a cap screw 35 lwhich may rest upon'tlie floor. By

35 may allow the weight lofthe motor to'ac't as a tightener of the belt'29 to la desired degree. A guard for the belt pulley 28 is shown io drive the conveying shaft 2Ol there ris esy i this arrangement adjustment of the cap screw A shown ar sprocket 39 formed upon the belt pulley 28 driving sprocket 40'leyed to shaft E30 by means of sprocket chain 41.

The endA members 10, "11 are shown, as

supporting the sides of alioppe'r 42, 43 ex- Y tending longitudinally of the machine'y between said. end members. The end members 10, 11 are formed as angles having flanges 44, projecting into overlapping relation with the ends of members 42, 43, which members may be rbolted to the said flanges.

Tie rods 46, 47, 48 are shown in addition tothe tie rod 33 already inentioned,'which rods preserve the spacing of the end members 10, 11 and retain the frame of the device rigid.

' The hopper 42, 43 'is shown as downwardly closed by a'screen 49 andl mixing elements 50,

51 are shown mounted upontheshaft 18, which mixing elements bear teeth 52 revolving closely adjacent the screen'49. The lshaft 18 and the mixinglelementsO, 51 revolve in' the direction of the arrow on Fig. r2. j

VTheside ofthe hopperfisv shown as linclined and terminates, closely adjacent the paths kof the mixing elements 50, 51, whereas To receive material passed through theV screen by action of the mixing` elements 50, a 51, a chamber-53- is shown enclosed by a wall 54 supported upon flanges 55, 5G carried by themembers 10, ll. Y Y a To further. mixmaterialjand' to advance the same towardthe Voutlet 23,' there isshowna conveying screw 57 carried by the shaft 2,0. To remove iron or steel particles such as nails feed and which may be smallnenou'gh to be passedthroughthe screen 49, there, isshown a table secured to the end member llV carryingl an electromagnet l The magnet 59 desirablyformedtas shown from, a horseshoe magnet 60 having acoil lupon one leg there- Y of, which coil may, be energized 'by means 'of a cable 62 under control of a switch', which switchmay also control the current to the motor Blthrough cable 73,

Themixing elements are desirably formedof like memberseach comprising ahub 64 securedtothe shaft 18 by means of set screws 65 each hub bearing armsGG, 67 upon the ends of which arms themixing,` elements 5l), .5L-are mounted and in assembling` the elements upon ine shaftv lSvthe arms 66, -671are arranged; in alternating` positions witlrthe armsGG, G7 perpendicular to the-armsofthe a d] acent members, thereby secar-i iig :a maximuniimixing effect as' the feed lis forced and rul'ibedthrough the screened).

- The screen 49, is shown as present-iiial a plus -1' "i ce tzu iianty of cuttingrec ges opposed o ie c i vrec-tion of revolutionof the elements 50,

Suchcutting edges may be desirably formed as shown by making the lscreen 49 ofy expanded metal Of-a'well known yform s'o placed, as shown inlhg. 8, to presenttheieferred to cutting;` edges. Other forms ofthe screen presenting cutting` edges maybe substituted for that shown.

llheconveyor screw 57may be fori'nedA of a plurality of like cast-ings each-V formed with a hub 69 screwed upon the shaft 20 aseby means set' screws 70 and each hub bear-y ing a pair of wings 7l, 72,1whichas shown inV the case of the memberspresented in end view in Fig` 3 -are placed diagonally to the axis of thehub 69.

The separate members are assembledion the shaft 20with the edges'ofithe wings 71, 72

registeringivitlr the adjacentwings whereby aspiralconveyor is provided as shownfin Fig. 3.

'Iir the operation ot the device ingredients ofthe feed may be dumped into the hopper any lumps being pulverized by this action and any large particles of foreign material being screened out by means of screen 49. Thematerial falling into the chamber 53 will be acted upon by the conveyingand mixingl screw 57 to continue the mixing'action and to force thefeed toward theV outlet Y23 where the feed will slide over the table 58 and anyv iron or steel particles will be extracted by the magneticV member 579,

'of' the appended claims Without departing' or thelile which may become mixed .with the,V

froml the spirit of theinvention.

I claim: '1: Affed imxer comprising, in combination, avrhfopper, substantially, semi-cylindricalgz screen Ain, the bottom` of said hopper of 1 `screen forming the bottom of said hopper ofiexpandedfmetal with the Iportions providing-.the meshes constituting cuttingedges, a

shaft mounted to revolve onthe axisl of said screen, a plurality 'ofhubs fixedfonsaid shaft,

an arm rigid With and projectingfrom each hub and terminatingl in a head, rigid teeth formed: on the circumferential surfaces Vof 'saitl-lieads, theiinapices revolving closely adjacent toA said screen whereby onrevolution orv said. shaft to cut. and. mix material, inthe hopper and force the saine through .the

screen.

3. A feed mixer, comprising, in combination, a hopper having a substantially'per.- pcnc'licular, side andanf inclinedV side converging" downwardly, a shaft mounted for revo; lut-ion in said hopper, n'iixing` elements rigidly mounted on said shaft to revolve upwardly toward and closely adjacent the lower edc-'e of said inclined side, a foraminous bottom for said hopper, aportion thereof formed Vsubstantially Yas a half cylinder concentric with said shaft and extending from the lower edge of said inclined side, said bottom extending fromA said semi-cylindrical portion upwardly andl outwardly tangential 'to the path of said mixing-elements to meet the lower edge offsaid perpendicular side and means. to j revolve said` shaft.

LlyAvfeed. mixer comprising, in combina# tion, a hopper, a shaft mounted vforfrevolution inthe lower portion of saidhopper, mixing elements rigidly mounted lon said shaft,` said hopper comprising arsubstantially per-v pendicular side offset freinet-he path of said isc lelements and an inclined side lying in a plane passing closely adjacent the axis ofr said shaft, a foraminous bottom for'said'hopper, a portion of said bottom formed as a half cylinder lying closely adjacent the path of saidr elements and having one edge coinciding with the lower edge of said inclined side, the bottom extending'from the other edge ofthe semi-cylindrical portion upon a tangent to the path of said elements to meet the lower edge of said perpendicular side, and means to revolve said shaft upwardly past the edge Y of said inclined side of the hopper.

5. A feed mixer comprising, in combination, first and second end castings, the first casting having an upper and a lower bearing integral therewith, upper bearing, the second casting having an opening therethrough,y a removable plate p covering said 'opening provided with a beary lshaft disposed outwardly of the viirst casting,

a 'Iiaiige integral with the first casting and extending outwardly therefrom, an annular frame secured to the last mentioned flange and about said drive means, a driving conl nection between the first and second shafts, I

a conveyor carried by the second shaft, 'a plate adjacent said conveyor, flanges integral with the first and second castings supporting said plate, and means to operate'the said drive IDGLDS. c

roNTUs w. e. iviiaiisoii.

a shaft liournaled in said 

